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Finding the Fourth Proportional to 495,181.90, 683,353.83 and 291,241.39

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Solution

The fourth proportional to 495,181.90, 683,353.83 and 291,241.39 is: 401,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,181.90 : 683,353.83 = 291,241.39 : x
  2. Step 2: Convert to fraction form
    495,181.90/683,353.83 = 291,241.39/x
  3. Step 3: Cross multiply
    495,181.90x = 683,353.83 × 291,241.39
  4. Step 4: Simplify right side
    495,181.90x = 199,020,919,311.02
  5. Step 5: Solve for x
    x = 199,020,919,311.02/495,181.90
  6. Step 6: Final answer
    x = 401,914.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.